WO2012126224A1 - 一种实时获取路况信息的方法及系统 - Google Patents

一种实时获取路况信息的方法及系统 Download PDF

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Publication number
WO2012126224A1
WO2012126224A1 PCT/CN2011/076960 CN2011076960W WO2012126224A1 WO 2012126224 A1 WO2012126224 A1 WO 2012126224A1 CN 2011076960 W CN2011076960 W CN 2011076960W WO 2012126224 A1 WO2012126224 A1 WO 2012126224A1
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WO
WIPO (PCT)
Prior art keywords
user
mobile terminal
information
current location
map
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/076960
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English (en)
French (fr)
Inventor
贾鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to EP11857421.9A priority Critical patent/EP2530665A4/en
Priority to US13/576,781 priority patent/US20140009557A1/en
Publication of WO2012126224A1 publication Critical patent/WO2012126224A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/3647—Guidance involving output of stored or live camera images or video streams
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
    • G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/09675—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where a selection from the received information takes place in the vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72457—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to geographic location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/10—Details of telephonic subscriber devices including a GPS signal receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/52—Details of telephonic subscriber devices including functional features of a camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present invention relates to a traffic condition acquisition technology in the field of wireless communication, and in particular, to a method and system for acquiring road condition information in real time. Background technique
  • the prior art has proposed related technical solutions to solve the serious situation of traffic jams, such as: a videophone method and system for real-time access to urban traffic conditions, and the implementation scheme is: establishing a relationship between the mobile server and the urban traffic monitoring terminal a communication interface; the mobile terminal calls the mobile server to establish a videophone; the mobile terminal selects a road segment to send to the mobile server to request to obtain traffic monitoring video data of the selected road segment; The traffic monitoring video data of the selected section of the mobile terminal is obtained from the urban traffic monitoring terminal, and is sent to the mobile terminal in real time.
  • the solution can provide road condition information to users in real time, there are also the following defects:
  • the scheme requires the mobile terminal user to manually select a link name to transmit, and if the user does not know the traffic situation in the urban area, there is no way to know the name of the link, and the road segment that needs to be understood cannot be selected;
  • the main object of the present invention is to provide a method and system for acquiring road condition information in real time, which is convenient for a user to select a road segment that needs to be understood, and the selection method is intuitive, and is convenient for the user to view the traffic condition of the selected road segment.
  • the present invention provides a method for obtaining road condition information in real time, the method comprising:
  • the mobile terminal locates the current location of the user and displays it; the mobile terminal calculates all the road segments near the current location for the user to select, or calculates the next link information according to the formed route map and the current location; Notifying the mobile server of the information of the section selected by the user or the next section information calculated.
  • the positioning of the current location of the user is displayed and displayed as:
  • the mobile terminal uses the cell ID (Cell ID), Time Difference of Arrival (TDOA), or Assisted Global Positioning System (A-GPS) to determine the current location of the user and displays it on the mobile terminal. On the map.
  • Cell ID Cell ID
  • TDOA Time Difference of Arrival
  • A-GPS Assisted Global Positioning System
  • the mobile terminal calculates all the road sections in the vicinity of the current location for the user to select: after the mobile terminal receives all the road section information provided with the camera near the current location sent by the mobile server, the mobile terminal sets the current location nearby.
  • the road segment of the camera is highlighted to the user and provides a point-and-click interface for the user.
  • the calculating the next link information according to the formed road map and the current position is:
  • the mobile terminal automatically selects a road segment with the smallest distance from the corresponding route in the formed route map as the current position from the road segment provided with the camera around the current location notified by the mobile server. The next section of the road.
  • the formed route map is: Before the mobile terminal calls the mobile server, the user marks the target address on the map in the mobile terminal in advance, and the map automatically forms a driving route according to the user's departure address and the target address. On the map.
  • the present invention also provides a system for acquiring road condition information in real time, including an urban traffic monitoring terminal; the system further includes: a mobile terminal and a mobile server; wherein
  • the mobile server is configured to receive information about a section selected by a user sent by the mobile terminal, or receive information about a next section calculated by the mobile terminal;
  • the mobile terminal is configured to locate and display the current location of the user after establishing the videophone; calculate all the segments near the current location for the user to select, or calculate the next link information according to the formed route map and the current location. And notifying the mobile server of the information of the section selected by the user or the calculated section information.
  • the mobile terminal further includes: a positioning module, a link processing module, and a visual telephone module; wherein
  • the positioning module is configured to: after the mobile terminal establishes the videophone, locate the current location of the user, and notify the location processing module of the located current location;
  • the road segment processing module is configured to display a current location of the user located by the positioning module, and calculate all the road segments near the current location for the user to select, or calculate the next road segment according to the formed route map and the current location. Information, and transmitting information of the selected section of the user, or the calculated next section information to the videophone module;
  • the videophone module is configured to notify the mobile server of the information of the section selected by the user sent by the link processing module or the calculated next section information.
  • the road segment processing module is configured to: display the current location of the user that has been located by the positioning module on the map when the current location of the user is displayed; correspondingly, the road segment processing module further stores a map.
  • the present invention also provides a mobile terminal, including: a positioning module, a link processing module, and a videophone module;
  • the positioning module is configured to: after the mobile terminal establishes the videophone, locate the current location of the user, and notify the location processing module of the located current location;
  • the road segment processing module is configured to display a current location of the user located by the positioning module, and calculate all the road segments near the current location for the user to select, or calculate the next road segment according to the formed route map and the current location. Information, and transmitting information of the selected section of the user, or the calculated next section information to the videophone module;
  • the videophone module is configured to notify the mobile server of the information of the section selected by the user sent by the link processing module or the calculated next section information.
  • the method and system for acquiring road condition information in real time provided by the present invention, after establishing a videophone, the mobile terminal locates the current location of the user and displays it on the map; the mobile terminal calculates all the sections near the current location for the user to select, or moves The terminal calculates the next link information according to the formed route map and the current position; the mobile terminal notifies the mobile server of the information of the selected section of the user, or the calculated link information, to obtain the traffic monitoring video data of the corresponding road segment.
  • the invention enables the user to intuitively and conveniently select the road segment to be understood on the map interface displayed by the mobile terminal during the running process, without having to memorize the name of the road segment, and does not need to perform multiple manual operations, so the selection operation is simple.
  • the user can avoid the serious traffic jams and select the best driving route to improve the user experience.
  • the road condition information received by the mobile terminal is provided by the urban traffic monitoring terminal in real time, so it has good real-time, accuracy and intuitiveness.
  • FIG. 1 is a schematic flowchart of a method for realizing obtaining real-time road condition information according to the present invention
  • FIG. 2 is a schematic flowchart of a method for implementing a method according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of a method for implementing a method according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a system for acquiring road condition information in real time according to the present invention
  • FIG. 5 is a schematic diagram of an internal structure of a mobile terminal according to the present invention. detailed description
  • the basic idea of the present invention is: after establishing a videophone, the mobile terminal locates the current location of the user and displays it on the map; the mobile terminal calculates all the road segments near the current location for the user to select, or the mobile terminal according to the formed route The map and the current location calculate the next section information; the mobile terminal notifies the mobile server of the information of the section selected by the user, or the calculated section information, to obtain the traffic monitoring video data of the corresponding section.
  • FIG. 1 is a schematic flowchart of a method for realizing real-time acquisition of road condition information according to the present invention. As shown in FIG. 1, the method includes the following steps:
  • Step 101 After establishing a videophone, the mobile terminal locates the current location of the user and displays it on the map.
  • the mobile terminal uses the existing positioning technology, such as Cell lD technology, TDOA technology or A-GPS technology, to determine the current location of the user on the map and display it on the map. For example: determining the current location of the mobile terminal on the map according to the GPS positioning information, and displaying the information to the mobile terminal user through the interface.
  • the map is a city traffic map stored in the mobile terminal, and is a prior art.
  • the positioning accuracy is 200m or more, 50-200m and 5-50m respectively.
  • the TDOA technology obtains the arrival times of the downlink pilots of different base stations by testing the downlink pilot signals of different base stations, that is, the so-called pilot phase measurement, according to the measurement result and combined with the base station
  • the coordinate position estimation method can locate the position of the mobile terminal.
  • the Cell ID technology determines the location of the mobile terminal according to the ID number of the cell where the mobile terminal is located. After the mobile terminal registers with the current cell, there is a corresponding Cell ID in the network, because the system stores the geographical location information of the cell. Therefore, the system can obtain the location information of the mobile terminal by using the Cell ID, and send the city information of the cell obtained after the positioning to the mobile terminal.
  • the implementation of Cell ID technology is as follows:
  • the mobile terminal initiates a request to the location service platform, and the location service platform performs authentication; 2) after the mobile terminal passes the authentication, the location service platform requests the visited location information from the home location register (HLR, Home Location Register) to which the mobile terminal belongs. ;
  • HLR home Location Register
  • the HLR sends the current visited location information of the mobile terminal to the location service platform
  • the location service platform sends a location request to the mobile switching center (MSC, Mobile Switching Center)/Servicing GPRS Support Node (SGSN) according to the visited location information, requesting to locate the mobile terminal;
  • MSC Mobile Switching Center
  • SGSN Serving GPRS Support Node
  • the MSC/SGSN locates the mobile terminal
  • the MSC/SGSN may initiate a page to the mobile terminal to update the cell in which the mobile terminal is located.
  • the MSC/SGSN After the positioning is completed, the MSC/SGSN returns the location information to the location service platform;
  • the location service platform returns location information to the mobile terminal.
  • the A-GPS technology combines the network base station information and the GPS information to locate the mobile terminal. Specifically, the mobile terminal transmits the location information data of the GPS to the network side, and the location calculation is performed by the positioning server on the network side, and the auxiliary data generated by the network side according to the reference network of the GPS, such as: differential correction data, satellite operation status. And the like is transmitted to the mobile terminal, and the approximate location of the mobile terminal is detected from the database and transmitted to the mobile terminal.
  • the A-GPS technology is used to obtain the urban traffic information, when the GPS positioning is initiated, the base station cell information near the mobile terminal is first acquired, and then the information is transmitted to the GPS server through the network; the GPS server is based on the mobile terminal.
  • the location information, the GPS auxiliary information related to the location, including the GPS ephemeris and the azimuth elevation angle, etc. are transmitted to the mobile terminal, and finally the location information of the city is obtained through the location information of the mobile terminal.
  • the present invention prefers the A-GPS technology as the positioning technology of the mobile terminal.
  • Step 102 The mobile terminal calculates all the road segments in the vicinity of the current location for the user to select, or the mobile terminal calculates the next road segment information according to the formed route map and the current location;
  • the mobile terminal displays the road segment with the camera in the vicinity of the current location in the highlighted form to the user, and the mobile terminal provides the user with a click interface, so that the user can select an appropriate road segment on the map displayed on the interface as needed.
  • the mobile terminal sends the road segment mark of the current location, such as the digital mark 3, to the mobile server, and the mobile server receives the mark of all the road segments where the camera is disposed around the road segment-3, such as the road segment-2, the road segment. -6 and the road segment-5 are returned to the mobile terminal, and after receiving the mobile terminal, all the road segments provided with the camera are highlighted on the map for the user to select.
  • the mobile terminal user may mark the target address on the map in advance before the mobile terminal calls the mobile server, and the map automatically forms a driving route according to the user's departure place and the target address, and the road map is formed on the map.
  • the mobile terminal automatically selects a section closest to the corresponding route in the formed route map from the section where the camera is provided around the current location, that is, the section with the smallest distance from the formed route as the next section of the current location. .
  • the calculation process of the mobile terminal is a mutual communication process between the mobile terminal and the mobile server.
  • the mobile server can update the information in the mobile terminal map in real time, and provide the road segment information with the camera in the vicinity of the current location to the mobile terminal, that is, the mobile terminal notifies the mobile server of the current location, requests the mobile
  • the server will send all the road segment information with the camera near the current location, that is, notify the mobile terminal of the road segment mark, and the process is now.
  • the user appropriately changes the driving route according to the traffic monitoring video data fed back by the mobile server, that is, the user selects a road section with better road conditions during the driving process, and therefore, the current location may have a certain deviation from the road map formed before the map. So choose the road segment closest to the road map as the next road segment of the current position.
  • Step 103 The mobile terminal notifies the mobile server of the information of the selected section of the user or the calculated section information.
  • the mobile terminal sends the related information of the selected section of the user, that is, the link identifier to the mobile server by means of a videophone; or, the mobile terminal passes the mark of the next section closest to the route map through the videophone.
  • the method is sent to the mobile server to obtain traffic monitoring video data of the corresponding road segment.
  • the mobile server sends the received road segment information to the urban traffic monitoring terminal; the urban traffic monitoring terminal transmits the traffic monitoring video data collected in each road segment to the real-time monitoring camera corresponding to the configured road segment.
  • the mobile server forwards the traffic monitoring video data to the mobile terminal in real time through the form of a videophone.
  • the traffic monitoring video data is an actual road condition picture collected by the camera.
  • Embodiment 1 The traffic monitoring video data is an actual road condition picture collected by the camera.
  • the mobile terminal sends the information of the user to select the road segment through the interface to the mobile service end.
  • the specific process is as shown in FIG. 2, and includes the following steps:
  • Step 201 Establish a communication interface between the mobile server and the urban traffic monitoring terminal.
  • Step 202 The mobile terminal calls the mobile server to establish a videophone.
  • the mobile terminal can call the mobile server by dialing a predetermined number.
  • Step 203 The mobile terminal calculates all the road sections in the vicinity of the current location for the user to select, and sends the information of the section selected by the user to the mobile server. Specifically, the mobile terminal calculates all the road sections near the current location through the GPS, and displays the user selection on the interface, and the user selects a certain road section on the interface; after that, the mobile terminal sends the relevant information of the section selected by the user to the The mobile server requests to acquire traffic monitoring video data of the road segment.
  • each road segment displayed on the interface of the mobile terminal may be marked with a different number, such as: segment-0, segment-3, or segment-9, so that the mobile terminal can send the number corresponding to the corresponding segment to the mobile server. It is convenient for communication between the mobile terminal and the mobile server.
  • Step 204 The mobile server obtains traffic monitoring video data of the selected section of the mobile terminal from the urban traffic monitoring terminal, and sends the traffic monitoring video data to the mobile terminal in real time;
  • Step 205 The mobile terminal displays the received traffic monitoring video data on the interface.
  • Embodiment 2 The user marks the target address on the urban traffic map displayed by the mobile terminal in advance.
  • the specific process is as shown in FIG. 3, and includes the following steps:
  • Step 301 The mobile terminal calculates a driving route map according to the target address marked by the user;
  • Step 302 The mobile terminal dials a predetermined number to call the mobile service terminal;
  • the communication interface between the mobile server and the urban traffic monitoring terminal is established; the mobile server establishes a videophone with the mobile terminal according to the existing videophone standard.
  • Step 303 The mobile terminal locates the current location of the user, calculates the next link information in combination with the roadmap, and sends the calculation result to the mobile server.
  • the next road segment information is calculated according to the calculated road map, and is sent to the mobile service end by using a videophone message.
  • the road segments can be numbered.
  • Step 304 The mobile server sends the selected road segment to the urban traffic monitoring terminal;
  • Step 305 The urban traffic control terminal turns on the surveillance camera of the selected road segment, and the surveillance camera is to be monitored.
  • the traffic monitoring video data of the collection is sent to the mobile server;
  • the urban traffic control terminal After receiving the relevant information of the road segment sent by the mobile server, the urban traffic control terminal turns on the configured surveillance camera of the selected road segment, and sends the traffic monitoring video data collected by the surveillance camera to the mobile service in real time. end.
  • Step 306 The mobile server forwards the traffic monitoring video data to the mobile terminal in real time, and the mobile terminal displays the received traffic monitoring video data on the interface.
  • the mobile terminal user can obtain the traffic condition of the required road section in real time, provide assistance for his own driving trip, and also contribute to the urban traffic guidance.
  • FIG. 4 is a schematic structural diagram of a system for acquiring road condition information in real time according to the present invention. As shown in FIG. 4, the mobile terminal, the mobile server, and the urban traffic monitoring terminal are included, wherein the function of the urban traffic monitoring terminal is the same as the prior art;
  • the urban traffic monitoring end is configured to collect traffic monitoring video data captured by the surveillance camera set by the corresponding road segment in real time according to the road segment information selected by the user sent by the mobile server, and collect the traffic monitoring video data collected in real time.
  • the urban traffic monitoring terminal is generally controlled by the urban traffic department, which links several surveillance cameras.
  • the surveillance cameras are installed in various sections of the city, such as: the main streets, bridges and intersections of the city, and the traffic of the road sections that the surveillance cameras will capture.
  • the surveillance video data is collected to the urban traffic monitoring terminal for use by traffic management personnel.
  • the mobile server is configured to receive information about a road segment selected by the user sent by the mobile terminal, or receive the next road segment information calculated by the mobile terminal, and send the received road segment information to the urban traffic monitoring terminal;
  • the traffic monitoring video data returned by the terminal is forwarded to the mobile terminal in real time;
  • the mobile server needs to establish a communication interface with the urban traffic monitoring terminal, and the mobile server transmits the traffic monitoring video data to the mobile terminal in real time through a videophone.
  • the mobile terminal is configured to locate and display the current location of the user after establishing the videophone; calculate all the segments near the current location for the user to select, or calculate the next link information according to the formed route map and the current location. And notifying the mobile server of the information of the section selected by the user or the calculated section information.
  • the mobile terminal is preferably a third generation mobile communication technology (3G) mobile terminal, including a display screen and a camera.
  • 3G third generation mobile communication technology
  • the mobile terminal further includes: a positioning module, a link processing module, and a videophone module;
  • the positioning module is configured to: after the mobile terminal establishes the videophone, locate the current location of the user, and notify the location processing module of the located current location;
  • the road segment processing module is configured to display a current location of the user located by the positioning module, and calculate all the road segments near the current location for the user to select, or calculate the next road segment according to the formed route map and the current location. Information, and transmitting information of the selected section of the user, or the calculated next section information to the videophone module;
  • the videophone module is configured to notify the mobile server of the information of the selected section of the user sent by the link processing module or the calculated next link information.
  • the videophone module is a processing module in an existing mobile terminal, and the road segment information can be sent to the mobile server by calling an H.245 interface.
  • the road segment processing module displays the current location of the user, and the road segment processing module displays the current location of the located user on the map. Correspondingly, the road segment processing module stores a map.
  • the present invention further provides a mobile terminal, as shown in FIG. 5, comprising: a positioning module, a link processing module, and a videophone module;
  • the positioning module is configured to: after the mobile terminal establishes the videophone, locate the current location of the user, and notify the location processing module of the located current location;
  • the road segment processing module is configured to display a current location of the user located by the positioning module, and calculate all the road segments near the current location for the user to select, or calculate the next road segment according to the formed route map and the current location. Information, and transmitting information of the selected section of the user, or the calculated next section information to the videophone module;
  • the videophone module is configured to notify the mobile server of the information of the selected section of the user sent by the link processing module or the calculated next link information.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Atmospheric Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Navigation (AREA)
  • Traffic Control Systems (AREA)

Abstract

本发明公开了一种实时获取路况信息的方法，包括：建立可视电话后，移动终端定位出用户当前的位置并显示；移动终端计算出当前位置附近的所有路段供用户选择、或根据已形成的路线图及当前的位置计算下一个路段信息；移动终端将用户所选路段的信息、或将计算出的下一个路段信息通知移动服务端。本发明还同时公开了一种实时获取路况信息的系统，运用该方法和系统可使用户方便、直观地选择所需了解的路段，且便于用户观看所选路段的交通状况。

Description

一种实时获:^况信息的方法及系统 技术领域
本发明涉及无线通信领域中的交通状况获取技术， 尤其涉及一种实时 获取路况信息的方法及系统。 背景技术
目前， 各大中城市， 如： 北京、 上海、 深圳等的车辆越来越多， 然而， 道路建设却往往跟不上车辆的增长速度， 从而造成城市道路的交通拥堵现 象日益普遍， 尤其在上下班高峰期更为严重。 因此， 当人们驾车去往某个 目的地之前， 若能够提前获知各可选路段的交通状况， 就可以避开堵车严 重的路段， 而选择交通状况较好的路线行驶。
现有技术已提出了相关技术方案， 以解决堵车严重的情况， 比如： 一 种实时获得城市交通状况的可视电话方法及系统， 实现方案为： 建立移动 服务端与城市交通监控端之间的通信接口； 移动终端呼叫所述移动服务端， 以建立可视电话； 移动终端选择一个路段发送给所述移动服务端， 以请求 获取所选路段的交通监控视频数据； 所述移动服务端从所述城市交通监控 端中获取该移动终端所选路段的交通监控视频数据， 并实时发送给所述移 动终端。 虽然该方案可针对性地将路况信息实时提供给用户， 但也存在如 下缺陷：
1 )该方案要求移动终端用户手动选择一个路段名称进行发送， 而如果 用户对城区交通情况不了解， 就无从知道路段名称， 也就无法选择需要了 解的路段；
2 )如果用户在开车行驶过程中使用该技术， 手工选择路段的过程则不 够方便， 选择一个路段需要手工进行两次菜单选择， 如需连续观察多个路 段则不是很方便， 也可能影响行车安全。
3 )通过菜单选择路段的方法也不够直观，未能实现在地图上点选路段。 发明内容
有鉴于此， 本发明的主要目的在于提供一种实时获取路况信息的方法 及系统， 便于用户选择所需了解的路段， 选择方法直观， 且便于用户观看 所选路段的交通状况。
为达到上述目的， 本发明的技术方案是这样实现的：
本发明提供了一种实时获取路况信息的方法， 该方法包括：
建立可视电话后， 移动终端定位出用户当前的位置并显示； 移动终端 计算出当前位置附近的所有路段供用户选择、 或根据已形成的路线图及当 前的位置计算下一个路段信息； 移动终端将用户所选路段的信息、 或将计 算出的下一个路段信息通知移动服务端。
其中， 所述定位出用户当前的位置并显示， 为：
移动终端釆用小区序列号 （Cell ID )、 到达时间差 （TDOA , Time Difference of Arrival ) 或辅助全球定位系统 （ A-GPS , Assisted Global Positioning System )定位技术确定用户当前的位置， 并显示在移动终端的地 图上。
其中， 所述移动终端计算出当前位置附近的所有路段供用户选择， 为： 移动终端收到移动服务端所发的当前位置附近所有设置有摄像头的路 段信息后， 将所述当前位置附近设置有摄像头的路段以高亮形式显示给用 户， 并为用户提供一个点选界面。
其中， 所述根据已形成的路线图和当前的位置计算下一个路段信息， 为：
移动终端从移动服务端所通知的当前位置周围设有摄像头的路段中自 动选择一个与已形成的路线图中的对应路线距离最小的路段作为当前位置 的下一个路段。
其中， 所述已形成的路线图为： 用户在移动终端呼叫移动服务端之前， 预先在移动终端中的地图上标出目标地址， 地图根据用户的出发地址和目 标地址自动形成一条行驶路线显示在地图上。
本发明还提供了一种实时获取路况信息的系统， 包括城市交通监控端； 该系统还包括： 移动终端及移动服务端； 其中，
所述移动服务端， 设置为接收移动终端所发的用户所选路段的信息、 或接收移动终端计算出的下一个路段信息；
所述移动终端， 设置为建立可视电话后， 定位并显示出用户当前的位 置； 计算出当前位置附近的所有路段供用户选择、 或根据已形成的路线图 及当前的位置计算下一个路段信息， 并将用户所选路段的信息、 或将计算 出的路段信息通知移动服务端。
其中， 所述移动终端进一步包括： 定位模块、 路段处理模块及可视电 话模块； 其中，
所述定位模块， 设置为移动终端建立可视电话后， 定位出用户当前的 位置， 并将定位出的当前位置通知路段处理模块；
所述路段处理模块， 设置为显示定位模块定位出的用户当前的位置， 并计算所述当前位置附近的所有路段供用户选择、 或根据已形成的路线图 及所述当前的位置计算下一个路段信息， 并将用户所选路段的信息、 或计 算出的下一个路段信息发送给可视电话模块；
所述可视电话模块， 设置为将路段处理模块所发的用户所选路段的信 息、 或计算出的下一个路段信息通知移动服务端。
其中， 所述路段处理模块在显示用户当前的位置时， 用于： 将定位模 块已定位出的用户当前的位置显示在地图上； 相应的， 所述路段处理模块 中还存储有地图。 本发明还提供了一种移动终端， 包括： 定位模块、 路段处理模块及可 视电话模块； 其中，
所述定位模块， 设置为移动终端建立可视电话后， 定位出用户当前的 位置， 并将定位出的当前位置通知路段处理模块；
所述路段处理模块， 设置为显示定位模块定位出的用户当前的位置， 并计算所述当前位置附近的所有路段供用户选择、 或根据已形成的路线图 及所述当前的位置计算下一个路段信息， 并将用户所选路段的信息、 或计 算出的下一个路段信息发送给可视电话模块；
所述可视电话模块， 设置为将路段处理模块所发的用户所选路段的信 息、 或计算出的下一个路段信息通知移动服务端。
本发明提供的实时获取路况信息的方法及系统， 建立可视电话后， 移 动终端定位出用户当前的位置并显示在地图上； 移动终端计算出当前位置 附近的所有路段供用户选择， 或者， 移动终端根据已形成的路线图及当前 的位置计算下一个路段信息； 移动终端将用户所选路段的信息、 或将计算 出的路段信息通知移动服务端， 以获取相应路段的交通监控视频数据。 本 发明使得用户在行驶过程中可在移动终端显示的地图界面上直观且方便的 点选所需了解的路段， 不需记忆路段的名称， 也不需进行多次手动操作， 因此选择操作简便。 这样， 用户就可以避开堵车严重的路段， 而选择最佳 的行驶路线， 提高了用户体验。 此外， 移动终端收到的路况信息为城市交 通监控端实时提供的， 因此具有良好的实时性、 准确性和直观性。 附图说明
图 1为本发明实时获取路况信息的方法实现流程示意图；
图 2为本发明实施例一的方法实现流程示意图；
图 3为本发明实施例二的方法实现流程示意图；
图 4为本发明实时获取路况信息的系统结构示意图； 图 5为本发明移动终端的内部结构示意图。 具体实施方式
本发明的基本思想是： 建立可视电话后， 移动终端定位出用户当前的 位置并显示在地图上； 移动终端计算出当前位置附近的所有路段供用户选 择， 或者， 移动终端根据已形成的路线图及当前的位置计算下一个路段信 息； 移动终端将用户所选路段的信息、 或将计算出的路段信息通知移动服 务端， 以获取相应路段的交通监控视频数据。
下面结合附图及具体实施例对本发明作进一步详细说明。
图 1为本发明实时获取路况信息的方法实现流程示意图， 如图 1所示， 该方法包括如下步骤：
步骤 101 : 建立可视电话后， 移动终端定位出用户当前的位置并显示在 地图上；
具体为： 建立移动服务端与城市交通监控端之间的通信接口， 之后移 动终端呼叫所述移动服务端， 以建立可视电话， 这里， 移动终端可通过拨 打一预定号码移动服务端以建立可视电话， 上述过程为现有技术， 此处不 再详述。 可视电话建立完成后， 移动终端利用已有的定位技术， 如： Cell lD 技术、 TDOA技术或 A-GPS技术等， 确定用户当前在地图上的位置， 并显 示在地图上。例如： 根据 GPS定位信息确定移动终端当前在地图上的位置， 并通过界面显示给移动终端用户。 其中， 所述地图为移动终端内存储的城 市交通图， 为现有技术。
下面对现有的移动终端定位技术进行简单描述。
目前应用于移动终端的定位技术主要有三种，包括： Cell ID技术、 TDOA 技术及 A-GPS技术， 定位精度分别为： 200m以上、 50-200m以及 5-50m。
TDOA技术通过测试不同基站的下行导频信号， 得到不同基站下行导 频的到达时刻， 即： 所谓的导频相位测量， 根据该测量结果并结合基站的 坐标釆用位置估算法， 就能够定位出移动终端的位置。
Cell ID技术是根据移动终端所处的蜂窝小区的 ID号来确定移动终端 的位置， 移动终端在当前小区注册后， 在网络中就会有对应的 Cell ID, 由 于系统存有小区的地理位置信息， 因此， 系统通过 Cell ID就能获取该移动 终端的位置信息， 并将定位后得到的小区所在的城市信息发送给移动终端。 Cell ID技术的实现方法如下：
1 )移动终端发起请求到位置业务平台， 由位置业务平台进行鉴权； 2 )移动终端通过鉴权后， 位置业务平台向移动终端归属的归属位置寄 存器（HLR, Home Location Register )请求拜访地信息；
3 ) HLR将移动终端当前的拜访地信息发送给位置业务平台；
4 )位置业务平台根据拜访地信息， 向移动交换中心 （MSC , Mobile Switching Center ) /月良务 GPRS支持节点 （SGSN, Servicing GPRS Support Node )发送定位请求， 请求对移动终端进行定位；
5 ) MSC/SGSN对移动终端进行定位；
这里， 如果必要的话， MSC/SGSN可以向移动终端发起寻呼， 来更新 移动终端所处的小区。
6 )定位结束后， MSC/SGSN向位置业务平台返回位置信息；
7 )位置业务平台再向移动终端返回位置信息。
A-GPS技术是结合网络基站信息和 GPS信息对移动终端进行定位。 具 体地， 移动终端将 GPS的位置信息数据传递给网络侧， 由网络侧的定位服 务器进行位置计算， 同时， 网络侧按照 GPS的参考网络所产生的辅助数据， 如： 差分校正数据， 卫星运行状态等传递给移动终端， 并从数据库中查出 移动终端的近似位置传给移动终端。 如果釆用 A-GPS技术获取城市交通信 息， 则在发起 GPS定位时， 首先获取移动终端附近的基站小区信息， 然后 将这些信息通过网络传输到 GPS服务器； GPS服务器根据该移动终端的大 概位置， 将与该位置相关的 GPS辅助信息， 包含 GPS的星历和方位俯仰角 等传输到移动终端， 最终通过移动终端所在位置信息获得所在的城市路段 信息。
因 A-GPS技术的定位精度较高，所以本发明优选 A-GPS技术作为移动 终端的定位技术。
步骤 102:移动终端计算出当前位置附近的所有路段供用户选择，或者， 移动终端根据已形成的路线图及当前的位置计算下一个路段信息；
具体为： 移动终端将所述当前位置附近设置有摄像头的路段以高亮形 式显示给用户， 移动终端为用户提供一个点选界面， 使用户可以根据需要， 在界面显示的地图上选择合适的路段。 例如： 移动终端将当前所处位置的 路段标记， 如数字标记 3 , 发送给移动服务端， 移动服务端收到后将路段 -3 周围设置有摄像头的所有路段的标记， 如路段 -2、 路段 -6和路段 -5返回给 移动终端， 移动终端收到后， 将所述设置有摄像头的所有路段高亮显示在 地图上， 供用户选择。
或者， 移动终端用户可在移动终端呼叫移动服务端之前， 预先在地图 上标出目标地址， 地图根据用户的出发地和目标地址自动形成一条行驶路 线显示在地图上， 所述路线图的形成过程为现有技术。 之后， 移动终端从 当前位置周围设有摄像头的路段中自动选择一个与已形成的路线图中的对 应路线最接近的路段， 即： 与已形成的路线距离最小的路段作为当前位置 的下一个路段。
本发明中， 所述移动终端的计算过程， 即为移动终端与移动服务端的 相互通信过程。 此时， 移动服务端能实时更新移动终端地图中的信息， 并 将当前所处位置附近设置有摄像头的路段信息提供给移动终端， 即： 移动 终端将当前所处位置通知移动服务端， 请求移动服务端将当前位置附近所 有设置有摄像头的路段信息， 即： 将路段标记通知移动终端， 该过程为现 有技术， 此处不再详细描述。
这里， 因用户会根据移动服务端反馈的交通监控视频数据适当改变行 车路线， 即： 用户在行驶过程中选择路况较好的路段， 因此， 当前位置相 对地图之前形成的路线图会有一定偏差， 所以要选择一个与路线图最接近 的路段作为当前位置的下一个路段。
步骤 103: 移动终端将用户所选路段的信息、或将计算出的路段信息通 知移动服务端；
具体为： 移动终端将用户所点选路段的相关信息， 即路段标记通过可 视电话的方式发送给移动服务端； 或者， 移动终端将与路线图最接近的下 一个路段的标记通过可视电话的方式发送给移动服务端， 以获取对应路段 的交通监控视频数据。
本发明步骤 103之后， 移动服务端将收到的路段信息发送给城市交通 监控端； 城市交通监控端通过所述路段对应配置的监控摄像头， 将在各路 段釆集的交通监控视频数据实时发送给所述移动服务端； 移动服务端将所 述交通监控视频数据通过可视电话的形式实时转发给移动终端。
其中， 所述交通监控视频数据即为摄像头釆集到的实际路况画面。 实施例一
本实施例中， 移动终端将用户通过界面点选路段的信息发送给移动服 务端， 具体流程如图 2所示， 包括如下步骤：
步骤 201 : 建立移动服务端与城市交通监控端之间的通信接口； 步骤 202: 移动终端呼叫移动服务端， 以建立可视电话；
这里， 移动终端可通过拨打一预定号码呼叫移动服务端。
步骤 203: 移动终端计算出当前位置附近的所有路段供用户选择， 并将 用户所选路段的信息发送给移动服务端； 具体为： 移动终端通过 GPS计算出当前位置附近的所有路段， 并在界 面上显示出供用户选择， 用户在界面上点选某一路段； 之后， 移动终端将 用户所选路段的相关信息发送给移动服务端， 以请求获取所述路段的交通 监控视频数据。
这里， 移动终端界面上显示的各路段可用不同的数字进行标记， 如： 路段 -0、 路段 -3、 或路段 -9等， 这样， 移动终端可将相应路段对应的数字发 送给移动服务端， 便于移动终端与移动服务端的通信。
步骤 204:移动服务端从城市交通监控端中获取所述移动终端所选路段 的交通监控视频数据， 并实时发送给移动终端；
步骤 205: 移动终端将收到的交通监控视频数据显示在界面上。
实施例二 用户预先在移动终端显示的城市交通图上标记出目标地址，具体流程如图 3 所示， 包括如下步骤：
步骤 301： 移动终端根据用户标记的目标地址计算行驶路线图； 步骤 302: 移动终端拨打一预定号码呼叫移动服务端；
这里， 设移动服务端与城市交通监控端之间的通信接口已建立； 移动 服务端按现有可视电话标准与移动终端建立可视电话。
步骤 303: 移动终端定位出用户当前的位置， 并结合路线图计算下一个 路段信息， 将计算结果发送给移动服务端；
具体为： 移动终端通过 A-GPS技术定位出用户当前的位置后， 结合已 计算出的路线图计算下一个路段信息， 并通过可视电话消息发送给移动服 务端。 所述路段可用数字标记。
步骤 304: 移动服务端将所选路段发给城市交通监控端；
步骤 305: 城市交通控制端接通所选路段的监控摄像头， 将监控摄像头 釆集的交通监控视频数据发送给移动服务端；
具体为： 城市交通控制端收到移动服务端所发的路段的相关信息后， 接通所选路段的配置的监控摄像头， 并将所述监控摄像头釆集的交通监控 视频数据实时发送给移动服务端。
步骤 306: 移动服务端将交通监控视频数据实时转发给移动终端， 移动 终端将收到的交通监控视频数据显示在界面上。
这样， 移动终端用户可实时地获得所需路段的交通状况， 为自己的驾 车出行提供帮助， 也有助于城市交通的疏导。
图 4为本发明实时获取路况信息的系统结构示意图， 如图 4所示， 包 括移动终端、 移动服务端及城市交通监控端， 其中， 所述城市交通监控端 的功能与现有技术相同；
首先对城市交通监控端的功能进行简单介绍。
所述城市交通监控端， 用于依据移动服务端所发的用户选择的路段信 息， 实时釆集对应路段设置的监控摄像头拍摄到的交通监控视频数据， 并 将釆集到的交通监控视频数据实时返回给移动服务端；
城市交通监控端一般由城市交通部门控制， 其链接若干个监控摄像头， 所述监控摄像头设置于城市各个路段， 例如： 城市主要街道、 桥梁和路口 等， 各监控摄像头将拍摄到的本路段的交通监控视频数据汇集到城市交通 监控端， 可供交通管理人员使用。
所述移动服务端， 用于接收移动终端所发的用户所选路段的信息、 或 接收移动终端计算出的下一个路段信息， 并将接收的路段信息发送给城市 交通监控端； 将城市交通监控端返回的交通监控视频数据实时转发给移动 终端；
移动服务端需已与城市交通监控端建立通信接口， 移动服务端通过可 视电话的方式将交通监控视频数据实时发送给移动终端。 所述移动终端， 用于建立可视电话后， 定位并显示出用户当前的位置； 计算出当前位置附近的所有路段供用户选择、 或根据已形成的路线图及当 前的位置计算下一个路段信息， 并将用户所选路段的信息、 或将计算出的 路段信息通知移动服务端。
所述移动终端优选为第三代移动通信技术（3G )移动终端， 包括显示 屏和摄像头等设备。
如图 5 所示， 所述移动终端进一步包括： 定位模块、 路段处理模块及 可视电话模块； 其中，
所述定位模块， 用于移动终端建立可视电话后， 定位出用户当前的位 置， 并将定位出的当前位置通知路段处理模块；
所述路段处理模块， 用于显示定位模块定位出的用户当前的位置， 并 计算所述当前位置附近的所有路段供用户选择、 或根据已形成的路线图及 所述当前的位置计算下一个路段信息， 并将用户所选路段的信息、 或计算 出的下一个路段信息发送给可视电话模块；
所述可视电话模块， 用于将路段处理模块所发的用户所选路段的信息、 或计算出的下一个路段信息通知移动服务端。
所述可视电话模块为现有移动终端中的处理模块， 可通过调用 H.245 接口将所述路段信息发送给移动服务端。
其中， 所述路段处理模块显示用户当前的位置， 为： 路段处理模块将 已定位出的用户当前的位置显示在地图上； 相应的， 所述路段处理模块中 存储有地图。
本发明还提供了一种移动终端， 如图 5 所示， 包括： 定位模块、 路段 处理模块及可视电话模块； 其中，
所述定位模块， 用于移动终端建立可视电话后， 定位出用户当前的位 置， 并将定位出的当前位置通知路段处理模块； 所述路段处理模块， 用于显示定位模块定位出的用户当前的位置， 并 计算所述当前位置附近的所有路段供用户选择、 或根据已形成的路线图及 所述当前的位置计算下一个路段信息， 并将用户所选路段的信息、 或计算 出的下一个路段信息发送给可视电话模块；
所述可视电话模块， 用于将路段处理模块所发的用户所选路段的信息、 或计算出的下一个路段信息通知移动服务端。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种实时获取路况信息的方法， 其中， 该方法包括：
建立可视电话后， 移动终端定位出用户当前的位置并显示； 移动终端 计算出当前位置附近的所有路段供用户选择、 或根据已形成的路线图及当 前的位置计算下一个路段信息； 移动终端将用户所选路段的信息、 或将计 算出的下一个路段信息通知移动服务端。
2、 根据权利要求 1所述的实时获取路况信息的方法， 其中， 所述定位 出用户当前的位置并显示， 为：
移动终端釆用小区序列号 Cell ID、 到达时间差 TDOA或辅助全球定位 系统 A-GPS定位技术确定用户当前的位置， 并显示在移动终端的地图上。
3、 根据权利要求 1或 2所述的实时获取路况信息的方法， 其中， 所述 移动终端计算出当前位置附近的所有路段供用户选择， 为：
移动终端收到移动服务端所发的当前位置附近所有设置有摄像头的路 段信息后， 将所述当前位置附近设置有摄像头的路段以高亮形式显示给用 户， 并为用户提供一个点选界面。
4、 根据权利要求 1或 2所述的实时获取路况信息的方法， 其中， 所述 根据已形成的路线图和当前的位置计算下一个路段信息， 为：
移动终端从移动服务端所通知的当前位置周围设有摄像头的路段中自 动选择一个与已形成的路线图中的对应路线距离最小的路段作为当前位置 的下一个路段。
5、 根据权利要求 4所述的实时获取路况信息的方法， 其中， 所述已形 成的路线图为： 用户在移动终端呼叫移动服务端之前， 预先在移动终端中 的地图上标出目标地址， 地图根据用户的出发地址和目标地址自动形成一 条行驶路线显示在地图上。
6、 一种实时获取路况信息的系统， 包括城市交通监控端； 其中， 该系 统还包括： 移动终端及移动服务端； 其中，
所述移动服务端， 设置为接收移动终端所发的用户所选路段的信息、 或接收移动终端计算出的下一个路段信息；
所述移动终端， 设置为建立可视电话后， 定位并显示出用户当前的位 置； 计算出当前位置附近的所有路段供用户选择、 或根据已形成的路线图 及当前的位置计算下一个路段信息， 并将用户所选路段的信息、 或将计算 出的路段信息通知移动服务端。
7、 根据权利要求 6所述的实时获取路况信息的系统， 其中， 所述移动 终端进一步包括： 定位模块、 路段处理模块及可视电话模块； 其中，
所述定位模块， 设置为移动终端建立可视电话后， 定位出用户当前的 位置， 并将定位出的当前位置通知路段处理模块；
所述路段处理模块， 设置为显示定位模块定位出的用户当前的位置， 并计算所述当前位置附近的所有路段供用户选择、 或根据已形成的路线图 及所述当前的位置计算下一个路段信息， 并将用户所选路段的信息、 或计 算出的下一个路段信息发送给可视电话模块；
所述可视电话模块， 设置为将路段处理模块所发的用户所选路段的信 息、 或计算出的下一个路段信息通知移动服务端。
8、 根据权利要求 7所述的实时获取路况信息的系统， 其中， 所述路段 处理模块在显示用户当前的位置时， 用于： 将定位模块已定位出的用户当 前的位置显示在地图上； 相应的， 所述路段处理模块中还存储有地图。
9、 一种移动终端， 其中， 包括： 定位模块、 路段处理模块及可视电话 模块； 其中，
所述定位模块， 设置为移动终端建立可视电话后， 定位出用户当前的 位置， 并将定位出的当前位置通知路段处理模块；
所述路段处理模块， 设置为显示定位模块定位出的用户当前的位置， 并计算所述当前位置附近的所有路段供用户选择、 或根据已形成的路线图 及所述当前的位置计算下一个路段信息， 并将用户所选路段的信息、 或计 算出的下一个路段信息发送给可视电话模块；
所述可视电话模块， 设置为将路段处理模块所发的用户所选路段的信 息、 或计算出的下一个路段信息通知移动服务端。
PCT/CN2011/076960 2011-03-23 2011-07-07 一种实时获取路况信息的方法及系统 Ceased WO2012126224A1 (zh)

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